Here is a scenario that plays out constantly: the ERP says you have 240 units of a SKU on hand. The WMS says 218. Someone just did a quick count in the aisle and came back with 203. Now three systems disagree, a customer order is on hold, and everyone is pointing at a different screen. This is not a technology failure. It's a clarity failure. These three systems are not interchangeable, and they were never meant to be. Your ERP — SAP, Oracle, NetSuite, whatever you're running